.container{
    position: relative;
}
.drawing_panel {
    list-style: none;
    z-index: 999;
    position: absolute;
    bottom: 10px;
    margin-left: 3rem;
    padding: 1rem 1rem;
    border-radius: .25rem;
    background-color: #fff;
    box-shadow: 0 2px 6px 0 rgba(27, 142, 236, 0.5);

    .btn {
        width: 90px;
        height: 30px;
        float: left;
        background-color: #fff;
        color: rgba(27, 142, 236, 1);
        font-size: 14px;
        border: 1px solid rgba(27, 142, 236, 1);
        border-radius: 5px;
        margin: 0 5px;
        text-align: center;
        line-height: 30px;
    }

    .btn:hover {
        background-color: rgba(27, 142, 236, 0.8);
        color: #fff;
    }
}